(20532) Benbilby Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
R. Ben Bilby mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. He teaches at the C.W. Ruckel Middle School, Niceville, Florida.Naming citation (20041028/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Benbilby is today
Seen from above the solar system on 2026-10-14: Benbilby is 2.78 au from the Sun and 3.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20532 |
| Provisional designation | 1999 RL64 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.65 km (#13,579 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.253 |
| Absolute magnitude (H) | 14.31 |
| Orbital period | 4.04 years |
| Semi-major axis | 2.54 au |
| Perihelion – aphelion | 2.29 – 2.79 au |
| Eccentricity | 0.0980 |
| Inclination | 3.72° |
| Closest distance between its orbit and Earth's (MOID) | 1.30 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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